Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Benson Thomas M
 2. Date of Event Requiring Statement (Month/Day/Year)
02/23/2011		 3. Issuer Name and Ticker or Trading Symbol
TRIMAS CORP [TRS]
(Last)
(First)
(Middle)
39400 WOODWARD AVENUE, SUITE 130		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President Cequent Performance
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

BLOOMFIELD HILLS, MI 48304		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 6,110 (1)
D
 
Common Stock 1,067 (2)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to buy) 10/01/2012 10/01/2015 Common Stock 33,330 (3) $ 23 D  
Non-Qualified Stock Option (Right to buy)   (4) 03/09/2019 Common Stock 30,000 (4) $ 1.01 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Benson Thomas M
39400 WOODWARD AVENUE
SUITE 130
BLOOMFIELD HILLS, MI 48304		       President Cequent Performance  

Signatures

/s/ Paula Reno attorney-in-fact 03/02/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Restricted shares of common stock of the Company granted December 4, 2009 under the TriMas Corporation 2006 Long Term Equity Incentive Plan, restrictions lapse on March 15, 2011.
(2) Balance of restricted shares of common stock of the Company granted April 2, 2008 under the TriMas Corporation 2006 Long Term Equity Incentive Plan, restrictions lapse on April 2, 2011.
(3) Option to purchase shares of common stock of the Company granted October 1, 2005 under the TriMas Corporation 2002 Long Term Equity Incentive Plan, 80% of the shares subject to this Option vested in three equal annual installments on each of October 1, 2006, October 1, 2007 and October 1, 2008; the remaining 20% of the shares subject to this Option will vest October 1, 2012.
(4) Balance of Non-Qualified Stock Option to purchase shares of common stock of the Company granted March 9, 2009 under the TriMas Corporation 2002 Long Term Equity Incentive Plan, remaining shares subject to this Option shall vest and become exercisable with respect to 12,500 shares on March 9, 2011 and 12,500 shares on March 9, 2012.
 
Remarks:
Exhibit List:  Exhibit 24.1 - Power of Attorney

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